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Active Contributor

Join Date: Aug 2011
Posts: 16

ASTM A217 Gr.C5

12/06/2011 9:38 AM

Castings are free from radioactive elements means what? this is for A 217 Gr.C5. Can any one help me..

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Guru

Join Date: Jul 2008
Location: Anywhere I may be at the time
Posts: 661
Good Answers: 16
#1

Re: ASTM A217 Gr.C5

12/06/2011 9:57 AM

These are meant not to make you glow in the dark Mr Simpson....

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Anonymous Poster #1
#2

Re: ASTM A217 Gr.C5

12/06/2011 11:36 AM

A lot of the castings are made from the scraps (ships including nuclear powered etc) where certain elements especially Cobalt which is usually non-radio-active (59Co) becomes radio-active isotope by exposure to radiations (60Co)

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Power-User

Join Date: Dec 2010
Posts: 377
Good Answers: 20
#3

Re: ASTM A217 Gr.C5

12/07/2011 11:51 AM

This condition is generally put for the alloys containing Co. But in A217 C5 Co is not there, so this condition should not be put.

This is to confirm that radioactive Co(isotop Co60) should not be used for alloying the castings.

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